Centrifugal machine.



E. ROBERTS & A. H. GIBSON.

CENTRIPUG'AL MACHINE. APPLICATION FILED FEB. 19, 1910. 1,011,851Patented Dec. 12,1911.

2 SHEETS-SHEET 1.

ATTORNEYS E. ROBERTS & A. H.1GI\BSON.

GENTRIFUGAL MACHINE.

APPLIGATION FILED P51119, 1910.

Patented Dec. 12,1911.

2 SHEETS-SHEET 2,

1 u\\ lllllllllllllll Afro/Mfrs EUGENE ROBERTS AND ANGUS HEN'DERSON-GIBSON, 0F LEHI, UTAH.

CENTRIEUGAL MACHINE.

, l specification f Letters raten.

rateme'nee. 12, 1911.

Applicate-on filed February 1e, i910. serial No. 544,946.'

To all whom it may concern: p v

Be it known that we, EUGENE l ROBERTS and ANGUs H. GIBSON, citizens ofthe United States, and residents of Lehi, in the county triugalMachines, of which vthe following is a specification.

Our invention 1s an improvement incen.`

trifugal machines, and consists in certain novel constructions andcombinations of parts hereinafter described and claimed.

The object of the invention is to provide a machine of theclass".specii'ied, wherein means is provided for thoroughly cleaning theinner surface of the basket, and which and without injury to the basketor the may be swung over the basket, lowered thereinto, and withdrawnand swung away from over the basket aiter the basket is cleaned.

A urther object is-toso arrange the said cleaning means that theincrusted sugar or other material may be cut away gradually,

cleaning means and without possibility of injury to the operator. l

Referring to the drawings forming a part hereof-Figure 1 is a sectionthrough a portion oi the casing ofa centrifugal'machine provided withour improvement; Fig. 2 is a view at right angles to Fig. 1; 'Figl 3 isa plan view; Fig. 4 'is a vertical section through the hollow shait;Fig.`5 is a sectionat right angles to Fig. 4; and Fig. 6 is a sectionalview of the paddle mounting.

The present embodiment of our invention is supported by a hollow bearingbracket 1, comprising a vertical portion 2, andaphorizontal portion 3,having at the inner end thereof a` vertical sleeve 5. |The verticalportion of the bracket 2 has its lower end reduced as at 6, a shoulder 7being arranged `betvv'een the reduced portionand the main portion, andthe reduced portion is received in abearingB, which is provided with albase 9 secured by bolts 10, to the sidect the casing 11. A nut 12 isthreaded on to the lower end of the reduced portion of the bracket, forsecuring the bracket in place. i

A shaft 13 is journaled in the horizontal portion of the bearing, theend of the shaft adjacent to the sleeve 5 being provided with a 'pinion14, keyed thereto by akey 4, and the other end with a hand wheel `15 forconvenience in manipulating the shaft. A

i hollow shaft '16 is slidable in the sleeve 5,

and one side of the shaft is provided with rack teeth'l?, with'which thepinion 14 l meshes of Utah and State of Utah, have made certain new anduseful Improvements .in Cen- A. 'rod is is jburnned in the hollow shaft,

the upper end of the rod being reduced as 'i at 19, and passing throughan opening in a collar20, which has projectingtherefrom a lever 21. Thelower side of the collar'20 rests on 'the top of the hollow shaft, and

a nut 22 is threaded'l on to the lupper end of the rod, to retain thecollar in place. A

key 23is provided on the reduced portionV of thevrod, the said keyengaging-akeyway vin the'collar as shown'in Fig. 4, to constrain the rodto move with the lever 21.

The lower end of the. rod v18,"is providedM with a key v24, engaginga-keyway inv'a' bearing 25, and the bearing is secured 1n place on therod by a'n'ut 26. l VThe bearing is provided with oppositelyxextendinglat-` 'y eral arms 27, 27, the said arms 'forming' a continuousv arctts/shown in Fig. 3. u The arm 27 is enlarged at its end as shown at 28,and is provided with a socket 29, for receiving the end of a .woodenpaddle 30',

which is secured in the socket by boltslf.

soi

The outer end of the paddle is beveied'- as i shown'at '32 in Fig. ,6,so that when thearm lis swung into' position with the end of l' thepaddle "against vthe inner wall of the basket or` screen 33, the beveled'end will fit' the inner face ofthe said wall.

The upper end of the sleeve 5 is provided e0 with an annular rib 34,having at opposite sides outwardly projecting pins 35, A cap i I 36 ismounted on the upper end of, the bear ing inclosin-g the rib, and thesidewalls of the cap are slotted as shown at 37 to receive theA pins.vThe cap is also provided with a central opening through which passesthe .i

sleeve 16 and rod 18,'and a plurality of coil springs 38,'isarrangedbetween the cap and' the upper iace of the rib. VAn arm 39 ,is

secured to the top40 of the casing, by bolts y 41, and a roller 42 isjournaled betweenthe. arms 43ofva fork on the end of the arm, and

engages the sleeve 16` in its raising and low# ering movement, toreducethe friction.- The 165' cap is engaged by a collari44, on the'sleeve 16,`below the bearing 20, and prevents vbreakage or injury to the partswhen the bearing is at its Il owest point. The springs yield when thecollar 44 engages the cap,

ally checking the descent without jar.

n permitting the cap. to descend, and g1-adn;

lltl

Our invention is especially adapted for use in centrifugal. machinesused in sugar making, and the operation is as follows: it is desiredugal machine the hollow shaft being elevated, the bracket is swung sothat the horizontal portion thereof projects over the casing. The handwheel is now turned to lower the hollow shaft through the ope ing 45 inthe top of the casing, after which the lever 2.1 is turned to bring thepaddle into the position shown in F ig. 3 in dotted lines. Duringthe'lowering of the paddle into the casing, the said paddle occupies theposition shown in full lines in the said figure. When in the positionshown in dotted lines, the beveled end of the paddle engages theincrustation of material on the inner face the screen, and strips oil aportion thereof according to the width of the paddle. The hand wheel isturned slowly with the paddle in this position, gradually lowering thepaddle and stripping the incrustation as it is lowered. Just before thepaddle reaches the bottom of the screen the collar v44 engages the cap,and the movement is gradually checked. After the sugar is loosened, thelever is operated to swing the paddle into the position shown in Fig. 3,and the hand wheel is rotated to elevate the paddle from the casing,after which the bracket may be swung to the side of the casing entirelyout of the way.

le claim:

l. The combination with the casing of the centrifugal machine, of abearing secured thereto, a hollow bearing bracket comprising a. verticalportion journaled in the bearing, and a horizontal portion and avertical sleeve at the end of the horizontal portion, a shaft journaledin the bearing, a pinion on the shaft adjacent to the sleeve, a handwheel on the other end of the shaft, a hollow shaft slidable in thesleeve and provided with rack teeth engaged by the pinion, a rodjournaled in the hollow shaft, a lever on the upper end of the rod formanipulating the same, an arm on the lower end of the rod, a paddlesecured to the arm, and yielding means for checking the downwardmovement of the hollow7 shaft near the end of its downward movement,said means comprising a cap on the sleeve for engagement by the ever andsprings supporting the cap.

2. The combination with the casing of the centrifugal machine, of abearing secured thereto, a a vertical portion journaled in the bearing,and a horizontal portion and a vertical sleeve at the end of thehorizontal portion, a shaft journaled in the hearing, a pinion on theshaft adjacent to the sleeve, a hand wheel on the other end of theshaft, a hollow shaft of the wall of slidable in the sleeve and providedwith rack sugar or other hollow bearing bracket comprising teeth engagedby the pinion, a rod j ournaled in the hollow shaft, a lever on theupper end manipulating the same, an

to empty the `sugar, the centrifarm on the lower end of therod, a paddleslowed up somewhat, and

checking' the hollow shaft movement.

3. rlhe combination with the casing of the centrifugal machine, of abracket supported thereon, a hollow sleeve slidable in the bracket,means for raising and lowering the sleeve, a rod journaled in thesleeve, a lever connected with the upper end of the rod for manipulatingthe same, an arm connected with the lower end of the sleeve, a paddlesecured to the arm, and yielding means for stopping the sleeve near theend'of its downward movement.

4.. The combination with the casing of the centrifugal machine, of ahollow sleeve, means for supporting the sleeve for swinging movementover and away from over the casing, means for moving the sleeve into andout of the casing, a rod journaled in the sleeve, a lever secured to therod for oscillating the same, an arm secured to the lower end of therod, a paddle in connection with the arm, and yielding means forstopping the sleeve near the end of its downward movement.

5. The combination with the centrifugal machine, of a rod mounted abovethe Inachine, means for swinging the said rod over and away from overthe machine, means for raising and lowering the rod, yielding means forchecking the rod near the end of its downward moi'ement, a paddle on therod, and means for oscillating the rod.

6. The combination with 'the centrifugal machine, of a rod mounted abovethe Inachine, means for swinging the said rod over and away from overthe machine, means for raising and lowering the rod, yielding means forchecking the rod near the end of its downward movement, a paddle on therod, means for oscillating the rod, an arm joui'- naled on the easing ofthe machine, and a roller journaled on the arm and engaging the rod.

7 ln a centrifugal machine, a paddle, mea-ns connected with the machinefor supporting the paddle and for swinging it over and away from overthe machine, means for raising and lowering the paddle, and yieldingmeans for checking the paddle near the end of its downward movement.

8. In a centrifugal machine, a bearing sleeve, means for,v supportingsaid sleeve for swinging movement over and away from over the machine, arodmovable througlL the sleeve, means for moving the rod, and a yieldingcap on the sleeve for checking the downward movement of the rod.

9. In a centrifugal machine, a cleaning paddle, means for supporting thepaddle, means for lowering the paddle and support into and out of thebasket of the machine, and means for swinging the support over and awayfrom over the machine, and means for gradually checking thedownwardmovement of the support.

10. A machine of the class specified, having means for cleaning theinner surface of the basket of a centrifugal machine, comprising meansfor swinging the cleaning means over the basket and for lowering it intoand withdrawing it from the basket, and comprising a bracket supportedoutside of the basket and having an inwardly projecting arm and carryingmeans whereby it may be swung, and means for checking the descent of thecleaning means into the basket.

11. A machine of the class specified, having means for cleaning theinner surface of the basket of a centrifugal Iachine, -and having alsomeans for swinging the said cleaning means over the basket and forlowering it into and withdrawing it from the basket, and comprising abracket supported for rotation outside -of the basket, and slidablysupporting the cleaning means, the said bracket carrying operating meanswhereby it may be oscillated, together with a cushion for yieldablychecking the descent of the cleaning means into the basket.

EUGENE ROBERTS. ANGUS HENDERSON GIBSON.

